PHP 5.1.3. Release Announcement

The PHP development team is proud to announce the release of PHP 5.1.3.
This release combines small number of feature enhancements with a significant amount of bug fixes and resolves a number of security issues.
All PHP users are encouraged to upgrade to this release as soon as possible.

The security issues resolved include the following:

Disallow certain characters in session names.

Fixed a buffer overflow inside the wordwrap() function.

Prevent jumps to parent directory via the 2nd parameter of the tempnam() function.